SHOCKING footage of Old Firm fans clashing after Hampden's Scottish Cup semi-final has appeared online.

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The video appears to show a bus full of Rangers supports throwing bottles from the back window towards crowds of Celtic fans.

The bus is then chased by the Hoops crowd before one Gers supporters jumps from the coach's top back window, before fleeing as Celtic fans run after him.

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Police made two arrests in the wake of the game which Celtic won 4-0.

They will now advance to the final with Motherwell.